Answer:
The nitrogen gas must be changed to a form called nitrates, which plants can absorb through their roots. The process of changing nitrogen gas to nitrates is called nitrogen fixation. It is carried out by nitrogen-fixing bacteria. The bacteria live in soil and roots of legumes, such as peas.
Answer:
A C B
Explanation:
Chlorophyll pigments absorb most of the light in the blue and red regions. Blue-violet region marks the peak absorption by chlorophyll a while chlorophyll b shows peak absorption in red blue light. Green colored light is not absorbed by chlorophyll a and b. Light absorption by chlorophyll is essential for the light-dependent phase of photosynthesis. Therefore the plant A grown under blue light will show maximum growth and plant B kept under green light would show minimum growth.
Contain more calories ..........
Answer:
They have a vacuole inside, that stored the nitrate needed to oxidize sulfide and obtain energy.
Explanation:
<em>Thiomargarita namibiensis</em> is the largest prokaryotic bacterium yet known, it has a spherical shape and reaches up to a size of 0.75 mm wide, which makes it visible to the human eye. It was discovered on the shores of Namibia and It is known as "Sulfur Pearl of Namibia," due to the sulfur granules they store inside and the brightness they produce. The problem with its large dimensions is the larger the surface of the bacteria, the lower the level of nutrient absorption. therefore this bacterium had to develop other mechanisms of nutrient and energy uptake
The survival mechanism of this bacterium is quite particular, first of all, it is an anaerobic bacterium, so it is found in sulfide-rich sediments. Its main feature is a liquid container inside called vacuole, which occupies 98% of its volume. In this vacuole, the nitrate that the bacteria use to oxidize sulfide is stored and thus obtain energy. <em>T. namibiensis</em> is unable to move, so they have to wait until the sea currents transport nitrate-rich seawater to store it in their vacuoles, so they can survive for up to 3 months without any other external substrate.
It’s exothermic so it gives off heat
